Fan



FIG. 1 is a perspective view of a fan showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is a side view of the opposite side of FIG. 4;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines represent environment and the boundary lines represent the bounds of the claim and form no part of the claim. 

CLAIM We claim the ornamental design for a fan, as shown and described. 